1) You can't compare fattness with baldness. Here is why: Both things changes your appearance but people know that being fat is your own fault wheras being bald is nature's fault. So, on a subconscious level people will imagine that a person who is fat also has very low self esteem, disciplin, lives an unhealthy life etc. I mean being fat says very much (negative) about a person. You can't say this with baldness.
Furhtermore, fatness totally destroys a person's looks because the whole body is affected by it. Hairloss only goes for the top of your head, and doing some tanning and shaving it completely off hairloss can be compared to a chick having small tits. You may notice it, but doesn't really matter. On the contrary it's clear that if you do the comb over trick, then your looks are ruined.
2) I too were so worried about my job prospects because I'm balding. I'm only 23 and it's not normal for guys my age to bald. But after I have had a hair transplant and using Dermatch I'm now letting the hair grow. My point is that hairloss does play a role in job-situations especially when you are young. The employee doesn't expect af 23 year old to be completely head-shaven (not in my environment - which is the law). But I think the older you get, the more normal it is to bald.
I just got a new job today in one of Denmark's biggest companies. I dont think they would have offered it to me if I didn't have hair. But the reason is for the most part that I had SOOOO low self conscience before. And you notice that when being interviewed. They don't want a guy completely without self conscience. So it's not so much because of the actual hairloss we have problems, but because of the psychological changes that goes with it.
You are your own worst critic -remember that. No one notices your hairloss as much as yourself.